coqide software package provides proof assistant for higher-order logic (gtk interface), you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install coqide
coqide is installed in your system.
Make ensure the coqide package were installed using the commands given below,
$ sudo dpkg-query -l | grep coqide *
You will get with coqide package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Mathematics |
| Package | coqide |
| Version | 8.4pl4dfsg-1+b1 [s390x], 8.4pl |
| Description | proof assistant for higher-order logic (gtk interface) |
| Sub Section | Math |